Thank you, tropicworld for this great link. When i studied in Chicago in the eighties some of these old exhibits at LPZ were still there. I remember the old duck pond that appears there. Judy the indian elephant lived in that old elephant barn shown in the pictures. The lion house and monkey house ( they had those names on signs) were already being rebuilt. The old sea lion pool shown in the pictures was gone, replaced by the current one. Amazing to see the keepers with the black bears. There seems to be a whooping crane in picture 15.